Valentina Di SarnoPaolo De NataleJordanka TassevaSantamaria, LLSantamariaElisabetta CanéFilippo TamassiaPasquale Maddaloni2020-09-172020-09-172018-02-01https://hdl.handle.net/20.500.13025/5180We report on a precision spectroscopic study of room-temperature H12C13CH in the 6463–6520 cm range, using a continuous-wave diode laser phase-locked to a near-infrared optical frequency comb synthesizer stabilized, in turn, against a GPS-disciplined rubidium clock. By tuning the comb repetition frequency, several ro-vibrational transitions in the P and R branches of the 2ν3 overtone band are recorded. Accuracy levels as low as 100 kHz, in fractional terms, are obtained in the determination of absolute line-center frequencies. In addition, line intensities are measured for the first time, with a best fractional uncertainty of 1%, and used to retrieve the purely vibrational transition dipole moment in conjunction with the first-order Herman–Wallis factor. Finally, the pressure broadening coefficients γself are also derived for the studied transitions.Absolute frequency metrology;Linestrength;H12C13CH;Ro-vibrational spectroscopy;2ν3 Infrared bandjournal article10.1016/j.jqsrt.2017.10.0305a9579156c5e1b5a034b8afb5a9579156c5e1b5a034b8afb5a9579156c5e1b5a034b8afbhttps://www.sciencedirect.com/science/article/pii/S00224073173057085a9579156c5e1b5a034b8afb